Fluorescence Enhancement by Supramolecular Sequestration of a C<sub>54</sub>-Nanographene Trisimide by Hexabenzocoronene
Bartłomiej Pigulski, Kazutaka Shoyama, Meng‐Jia Sun, Frank Würthner
Abstract
A supramolecular trilayer nanographene complex consisting of a newly synthesized D3h-symmetric C54-nanographene trisimide (NTI 1) and two hexabenzocoronenes (HBC) has been obtained by self-assembly. This 1:2 complex is structurally well-defined according to UV/vis and single crystal X-ray studies and exhibits high thermodynamic stability even in polar halogenated solvents. Complexation of NTI 1 by two HBC molecules protects the NTI 1 π-surface efficiently from oxygen quenching, thereby leading to a sequestration-induced fluorescence enhancement under ambient conditions.
Topics & Concepts
ChemistrySupramolecular chemistryFluorescenceQuenching (fluorescence)PolarMoleculeOxygenPhotochemistryCrystal structureCrystallographyOrganic chemistryPhysicsQuantum mechanicsAstronomySynthesis and Properties of Aromatic CompoundsLuminescence and Fluorescent MaterialsPorphyrin and Phthalocyanine Chemistry